Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 5 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2021   16:28:11   (   0.07,-127.71) (  -0.79,-123.84)  441.21                80
 05/03/2021   04:47:11   (  -0.06,-127.69) (  -0.25,-128.48)   90.44                80
 05/04/2021   04:23:51   (  -0.07,-127.72) (   0.86,-123.50)  480.64                80
 05/05/2021   16:42:44   (   0.06,-127.87) (   0.11,-128.11)   27.35                80
 05/08/2021   04:41:04   (  -0.06,-127.89) (  -0.04,-127.77)   13.13                80
 05/09/2021   16:59:57   (   0.05,-128.03) (   1.01,-132.39)  496.21                80
 05/10/2021   16:41:57   (   0.06,-128.07) (  -0.10,-127.41)   75.12                80
 05/12/2021   05:00:58   (  -0.05,-128.05) (  -0.94,-132.05)  455.66                80
 05/13/2021   04:37:38   (  -0.05,-128.08) (   0.18,-127.07)  114.61                80
 05/14/2021   16:56:30   (   0.05,-128.20) (   0.80,-131.68)  396.55                80